couldn't it be Monodontomerinae, even genus Monodontomerus?Characteristics I'm referring to: - mesepimeron not incised on posterior margin (upper part of last pic) for Monodontomerinae- one tooth on hind femur (1st pic) for Monodontomerus sp

Marc,I can't see a tooth on the hind femur in your image, so that's why I didn't go for Monodontomerus. If you can, check behind the head for the presence of occipital carina, and how high up or low down it is.-Bob